.Quartz glass is the only industrially utilized single component glass. Which one of the following is a characteristic property of quartz glass?     (2 نقطة) High thermal expansion coefficient High chemical resistance Excellent dielectric properties High transparency to UV-light High temperature stability

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Q: Iwo specimens of paraffin having densities 2.144 g/cm³ with crystallinity ratio 51.3% and 2.215…

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Q: Which organic liquid has: Molecular weight = 79.53g/mol Density = 0.7708 g/ml Viscosity = 1.39…

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Q: Q-6 Based on the experimental data below for Aluminum, determine (using Excel and by hand) the…

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Q: The edge length of sodium that crystallizes in the BCC structure is 0.492 nm. Calculate the atomic…

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Q: Explain how the overlap of atomic orbitals gives rise to bands in metals?

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Q: Assume that a material has a FCC crystal structure, an atomic radius is 0.13x nm, and an atomic…

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Q: Quartz glass is the only industrially utilized single component glass. Which one of the following is…

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Q: The following information is given for aluminum at 1 atm: Boiling point = 2467.0°C Heat of…

A: Pressure of aluminum P=1 atm Boiling point = 2467.0 °C Heat of vaporization ∆Hv=2.52×103 cal/g…

Q: Compare graphite to diamond based on: a) Structure b) Conductivity c) Density d) C-C bond length e)…

A: Here we have to compare difference between graphite and diamond.

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A: Discussing the following statements.

Q: You are given the following data  : Peak order (n)…

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Q: What is difference between the structure of diamond and graphite?

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Q: Describe the packaging of body center cubic (BCC) and face center cubic (FCC) and verify your…

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Q: ermosetting polymer

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Q: Out of the following defects, which one must occur in pairs for ionic compounds with 1:1…

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Q: Give the five examples for glass forming materials. What is the role of modifiers in glass making.…

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Q: please help? make the answer clear

A: Given data,Volume of unit cell = 2.31 x 10-28 m3 =2.31 x 10-22 mLDensity is 3.78 g/mL

Q: 1. For FCC (face-centered cubic) platinum (Pt, having an atomic radius of 0.1387 nm), determine the…

A: Given Type of Structure    = FCC Atomic Radius  ( R )= 0.1387 nm  Plane = ( 3 1 1 )  Wavelength =…

Q: Discuss the following sentences: 7- The role of PbO in glass.

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Q: What are the characteristics of FCC?

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Q: A blue gold ring is found to be 75% gold and 25% indium. Draw a particle diagram of the blue gold…

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Q: Who among the substances sugar, salt, and peppers can appears to be made of crystal?

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Q: How is the purity of a crystalized solid assessed?

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Q: Which of the following polymers has a syndiotactic structure? A CH B CH D

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Q: Describe how the anatomy of an atom. What is the atomic number and atomic mass?

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Q: Mention various sources of lattice vibration. what do they te

A: Given Mention various sources of lattice vibration.

Q: Match each term to the correct example. Quartz (silicon dioxide) V [Choose ] Molecular solid lonic…

A: Each terms are matched with the example in the table given below.

Q: Explain with a Frost circle as to why this structure is unstable.

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Q: 9. The density of Al is 2.7 g/cm³ and that of Al2O; is about 4 g/cm³. Describe the characteristics…

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Group 14 Elements

The following elements come under group 14 of the periodic table.